Having problems with your 2004 Pontiac Sunfire ?
How to remove a 2004 sunfire battery - 2004 Pontiac Sunfire
I just pulled up a pic of the engine compartment and it looks like you should have a bolt on the bottom of the battery that holds a wedge in place to hold the battery. If it is this type the bolt size is about 1/4 inch or an 8 mm.
Repair Help & Product Troubleshooting for 2004 Pontiac Sunfire
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